package com.y.core.toolbox.support;
public class ImagePosition {
	/** 图片顶部. */ 
	public static final int TOP = 32;
	/** 图片中部. */ 
	public static final int MIDDLE = 16;
	/** 图片底部. */ 
	public static final int BOTTOM = 8;
	/** 图片左侧. */ 
	public static final int LEFT = 4;
	/** 图片居中. */ 
	public static final int CENTER = 2;
	/** 图片右侧. */ 
	public static final int RIGHT = 1;
	/** 横向边距，靠左或靠右时和边界的距离. */
	private static final int PADDING_HORI = 6;
	/** 纵向边距，靠上或靠底时和边界的距离. */
	private static final int PADDING_VERT = 6;
	/** 图片中盒[左上角]的x坐标. */
	private int boxPosX ;
	/** 图片中盒[左上角]的y坐标. */
	private int boxPosY ;
	/**
	 * Instantiates a new image position.
	 *
	 * @param width the width
	 * @param height the height
	 * @param boxWidth the box width
	 * @param boxHeight the box height
	 * @param style the style
	 */
	public ImagePosition(int width , int height , int boxWidth , int boxHeight, int style ) {
		switch(style & 7) {
			case LEFT:
				boxPosX = PADDING_HORI; 
				break;
			case RIGHT:
				boxPosX = width - boxWidth - PADDING_HORI; 
				break;
			case CENTER:
			default:
				boxPosX = (width - boxWidth)/2;
		}
		switch(style >> 3 << 3) {
			case TOP:
				boxPosY = PADDING_VERT;
				break;
			case MIDDLE:
				boxPosY = (height - boxHeight)/2;
				break;
			case BOTTOM:
			default:
				boxPosY = height - boxHeight - PADDING_VERT;	
		}
	}
	/**
	 * Gets the x.
	 *
	 * @return the x
	 */
	public int getX() {
		return getX(0);
	}
	/**
	 * Gets the x.
	 *
	 * @param x 横向偏移
	 * @return the x
	 */
	public int getX(int x) {
		return this.boxPosX + x;
	}
	/**
	 * Gets the y.
	 *
	 * @return the y
	 */
	public int getY() {
		return getY(0);
	}
	/**
	 * Gets the y.
	 *
	 * @param y 纵向偏移
	 * @return the y
	 */
	public int getY(int y) {
		return this.boxPosY + y;
	}
}
